19163728

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 38497536

約数和(自身を除く): 19333808

約数列:

[1, 2, 4, 8, 16, 41, 82, 131, 164, 223, 262, 328, 446, 524, 656, 892, 1048, 1784, 2096, 3568, 5371, 9143, 10742, 18286, 21484, 29213, 36572, 42968, 58426, 73144, 85936, 116852, 146288, 233704, 467408, 1197733, 2395466, 4790932, 9581864, 19163728]

約数ペア:

[(1, 19163728), (2, 9581864), (4, 4790932), (8, 2395466), (16, 1197733), (41, 467408), (82, 233704), (131, 146288), (164, 116852), (223, 85936), (262, 73144), (328, 58426), (446, 42968), (524, 36572), (656, 29213), (892, 21484), (1048, 18286), (1784, 10742), (2096, 9143), (3568, 5371)]